| 1183 | bs = relationship("B") |
| 1184 | |
| 1185 | class B(ComparableMixin, Base): |
| 1186 | __tablename__ = "b" |
| 1187 | id = Column(Integer, Identity(), primary_key=True) |
| 1188 | a_id = Column(ForeignKey("a.id")) |
| 1189 | boolean = query_expression() |
| 1190 | data = Column(String(30)) |
| 1191 | |
| 1192 | @classmethod |
| 1193 | def insert_data(cls, connection): |